Frequencies for first 10,000 rows of race variable in namcs1999 dataset :

                        patient race |      Freq.     Percent        Cum.
-------------------------------------+-----------------------------------
                               White |      8,627       86.27       86.27
              Black/African American |        933        9.33       95.60
Asian or Native Hawaiian/Oth Pac Isl |        390        3.90       99.50
       American Indian/Alaska Native |         25        0.25       99.75
         More than one race reported |         25        0.25      100.00
-------------------------------------+-----------------------------------
                               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016